Glass fiber reinforced plastic septic tank convenient for biogas collection

Abstract

The utility model belongs to the technical field of biogas collection, and particularly relates to a glass fiber reinforced plastic septic tank convenient for biogas collection, which comprises a septic tank, a gas collection tank, a reaction tank and a collection tank, the gas collection tank is arranged above the septic tank and is respectively communicated with a first tank, a second tank and a third tank of the septic tank through a first pipeline, and the reaction tank is communicated with the collection tank through a second pipeline. The reaction tank is filled with a sodium hydroxide solution, the sodium hydroxide solution enters the reaction tank through the feed port and is discharged from the discharge port after reaction is completed, the reaction tank is connected with the gas collection tank through a second pipeline, the tail end of the second pipeline is connected with a flow divider, and the flow divider is located below the liquid level of the sodium hydroxide solution in the reaction tank; the flow divider is connected with a plurality of gas ejector pipes, and a plurality of small holes are uniformly distributed in the surfaces of the gas ejector pipes, so that the reaction efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of biogas collection, and in particular relates to a glass fiber reinforced plastic septic tank which is convenient for biogas collection. Background Art

[0002] With the continuous acceleration of urbanization in my country and the continuous improvement of people's living standards, the consumption of toilet sewage is also increasing. How to effectively treat toilet sewage has become one of the difficulties for environmental protection workers. Septic tanks are one of the equipment for treating feces and filtering and precipitating them. The collection of biogas produced by the degradation and fermentation of septic tanks is completed by the staff operating the external collection mechanism. Biogas is a flammable and explosive gas. There are safety risks when the staff operates the manual collection mechanism. Therefore, it is particularly important to design a fiberglass septic tank that is convenient for biogas collection.

[0003] The prior art has the following problems:

[0004] A glass fiber reinforced plastic septic tank for facilitating biogas collection is disclosed in the patent application number CN 215756959 U, but the design is very compact, the process is simple, and the biogas is not purified, so that the obtained biogas contains a large amount of impurities. Summary of the invention

[0005] In view of the above problems, the present invention provides a fiberglass reinforced plastic septic tank which is convenient for collecting biogas, and is used to solve the problem of the purity of collected biogas.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fiberglass reinforced plastic septic tank that is convenient for collecting biogas, including a septic tank, a gas collecting tank, a reaction tank and a collection tank, the gas collecting tank is installed above the septic tank, the reaction tank is filled with sodium hydroxide solution, the reaction tank is connected to the gas collecting tank through a second pipe, a diverter is connected to the end of the second pipe, and the reaction tank is connected to the collection tank through a third pipe.

[0007] Furthermore, the diverter is located below the liquid surface of the sodium hydroxide solution in the reaction tank, and the diverter is connected to a plurality of jet pipes.

[0008] Furthermore, a plurality of small holes are evenly distributed on the surface of the jet pipe, so that the biogas and the sodium hydroxide solution react more fully.

[0009] Furthermore, a feed port is installed at the upper left of the reaction tank, and a discharge port is installed at the lower left. The sodium hydroxide solution enters the reaction tank through the feed port and is discharged through the discharge port after the reaction is completed.

[0010] Furthermore, the third pipeline is located above the liquid level of the sodium hydroxide solution.

[0011] Furthermore, the septic tank includes a first tank, a second tank and a third tank, and the first tank, the second tank and the third tank are respectively connected to the gas collecting tank through a first pipe.

[0012] Compared with the prior art, the utility model provides a fiberglass reinforced plastic septic tank that is convenient for collecting biogas, and has the following beneficial effects: the utility model can obtain purer biogas, and the biogas is passed through a sodium hydroxide solution. The main components of the biogas are carbon dioxide and methane. Carbon dioxide can react with the sodium hydroxide solution, and methane will not react with the sodium hydroxide solution. In this way, purer biogas can be obtained. A device combining a diverter and a jet pipe is designed in the reaction tank, which can increase the contact surface between the biogas and the sodium hydroxide solution, so that the carbon dioxide in the biogas can react with the sodium hydroxide solution more fully, thereby improving the efficiency of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall cross-sectional view of the utility model.

[0014] Figure 2 It is a side view of the diverter of the utility model.

[0015] In the figure: 1. Septic tank; 2. Gas collecting tank; 3. First pipeline; 4. Second pipeline; 5. Feed inlet; 6. Reaction tank; 7. Jet pipe; 8. Discharge outlet; 9. Third pipeline; 10. Collection tank; 11. Diverter. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. Example

[0017] The specific working principle of the present invention is as follows: a glass fiber reinforced plastic septic tank for easy biogas collection comprises a septic tank 1, a gas collecting tank 2, a reaction tank 6 and a collecting tank 10, wherein the gas collecting tank 2 is installed above the septic tank 1, and the septic tank is divided into a first tank, a second tank and a third tank, and each of the three tanks is connected to the gas collecting tank 10 by a pipeline, and a sodium hydroxide solution is contained in the reaction tank 6, and a feed port 5 is arranged at the upper left of the reaction tank 6, and the sodium hydroxide solution is poured into the reaction tank 6 through the feed port 5, and a discharge port 8 is arranged at the lower left of the reaction tank 6, and after the reaction, the valve above the discharge port 8 is opened, and the solution in the reaction tank 6 is discharged through the discharge port 8, and the reaction The reaction tank 6 is connected to the gas collecting tank 2 through a second pipe 4, and a diverter 11 is connected to the end of the second pipe 4. The diverter 11 is located below the liquid level of the sodium hydroxide solution in the reaction tank 6. The diverter 11 has a pipe interface, which is connected to the second pipe 4 through the pipe interface. Four injection pipes 7 are arranged around the circumferential surface of the diverter 11 and are connected to the inner cavity. Small holes are evenly distributed on the surface of the injection pipe 7. The biogas enters the reaction tank 6 through the small holes to react with the sodium hydroxide solution. The reaction tank 6 is connected to the collecting tank 10 through a third pipe 9. A pipe is connected to the lower right side of the reaction tank 10, and the gas in the collecting tank 10 is discharged through the pipe.

[0018] When in use, the three tanks in the septic tank 1 will produce biogas, which will enter the gas collecting tank 2 through a pipe connected to the gas collecting tank 2, and then enter the diverter 11 through the second pipe 4. The diverter 11 will disperse the biogas to four jet pipes 7, and discharge it into the reaction tank 6 through the small holes on the surface of the jet pipes 7, so that the biogas can react more fully with the sodium hydroxide solution in the reaction tank 6. The main components of biogas are methane and carbon dioxide. The sodium hydroxide solution in the reaction tank 6 will react with the carbon dioxide in the biogas, but the sodium hydroxide solution will not react with methane, so that purer biogas can be obtained. The reacted biogas enters the collecting tank 10 through the third pipe 9, and then is discharged through the collecting tank 10. The reacted solution is discharged through the discharge port 8, and then the feed port 5 is opened, and the sodium hydroxide solution is re-added for a cyclic reaction.

[0019] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0020] Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A glass fiber reinforced plastic septic tank for facilitating biogas collection, comprising a septic tank (1), a gas collecting tank (2), a reaction tank (6) and a collecting tank (10), characterized in that: The gas collecting tank (2) is installed above the septic tank (1), and the reaction tank (6) is filled with sodium hydroxide solution. The reaction tank (6) is connected to the gas collecting tank (2) via a second pipe (4), and a diverter (11) is connected to the end of the second pipe (4). The reaction tank (6) is connected to the collecting tank (10) via a third pipe (9).

2. A fiberglass reinforced plastic septic tank for facilitating biogas collection according to claim 1, characterized in that: The flow divider (11) is located below the liquid surface of the sodium hydroxide solution in the reaction tank (6), and the flow divider (11) is connected to a plurality of air injection pipes (7).

3. A fiberglass reinforced plastic septic tank for facilitating biogas collection according to claim 2, characterized in that: A plurality of small holes are evenly distributed on the surface of the gas injection pipe (7), so that the biogas and the sodium hydroxide solution react more fully.

4. A fiberglass reinforced plastic septic tank for facilitating biogas collection according to claim 1, characterized in that: The reaction tank (6) is provided with a feed inlet (5) at the upper left and a discharge outlet (8) at the lower left. The sodium hydroxide solution enters the reaction tank (6) through the feed inlet (5) and is discharged through the discharge outlet (8) after the reaction is completed.

5. A fiberglass reinforced plastic septic tank for facilitating biogas collection according to claim 1, characterized in that: The third pipeline (9) is located above the liquid level of the sodium hydroxide solution.

6. A fiberglass reinforced plastic septic tank for facilitating biogas collection according to claim 1, characterized in that: The septic tank (1) comprises a first tank, a second tank and a third tank, and the first tank, the second tank and the third tank are respectively connected to the gas collecting tank (2) through a first pipe (3).

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